Observations of trace gases and aerosols over the Indian Ocean during the monsoon transition period

Journal of Earth system science

K S Zalpuri1¹  M Dileep Kumar2³  A P Mitra1¹  Ateef Khan1¹  Prabhat K Gupta1¹  R S Parmar1¹  S C Garg1¹  Risal Singh1¹  R S Tanwar1¹  T K Mandal1¹  A Suryanarayana2³  Y Nazeer Ahammed1¹  V S N Murty2³  Andrew J Shepherd3²  S L Jain1¹ 

[1]National Physical Laboratory, New Delhi 110 012, India.$$

[2]National Ocean and Atmospheric Administration/Pacific Marine Environmental Laboratory, USA.$$

[3]National Institute of Oceanography, Dona Paula, Goa 403 004, India.$$

关键词: Trace gases;    aerosols;    Indian Ocean;    monsoon transition;    air pollutants.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Characteristics of trace gases (O3, CO, CO2, CH4 and N2O and aerosols (particle size of 2.5 micron) were studied over the Arabian Sea,equatorial Indian Ocean and southwest part of the Bay of Bengal during the monsoon transition period (October-November,2004).Flow of pollutants is expected from south and southeast Asia during the monsoonal transition period due to the patterns of wind flow which are different from the monsoon period.This is the first detailed report on aerosols and trace gases during the sampled period as the earlier Bay of Bengal Experiment (BOBMEX), Arabian Sea Monsoon Experiment (ARMEX)and Indian Ocean Experiments (INDOEX)were during monsoon seasons. The significant observations during the transition period include:low ozone concentration of the order of 5 ppbv around the equator,

【 授权许可】

Unknown